ReadyLIFT 6" Rear Lift Block Kit
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Product Overview
The ReadyLIFT 6" Rear Lift Block Kit is engineered for select GM Silverado/Sierra 1500 and Ford Super Duty applications requiring substantial rear lift while maintaining proper suspension geometry and towing capability. Designed using OEM-inspired engineering principles, these heavy-duty block kits utilize cast iron construction, integrated locating features, and application-specific hardware to provide a safe and durable rear suspension upgrade. ReadyLIFT offers multiple configurations to accommodate various vehicle platforms, rear spring designs, and driveshaft configurations.
Unlike lightweight extruded lift blocks, ReadyLIFT rear blocks are manufactured from heavy-duty cast iron and feature vehicle-specific designs to ensure proper axle alignment and long-term durability. These kits are ideal for restoring factory rake after installing front leveling kits, improving towing stance, and complementing larger suspension lift systems.
Whether you're upgrading a GM 1500 truck, a mono-leaf Silverado/Sierra application, or a 2017–2025 Ford Super Duty equipped with either a 1-piece or 2-piece driveshaft, ReadyLIFT provides a purpose-built rear block solution to maintain performance and appearance. Now Available at LEER!
Features & Specifications
Product Type: Rear Lift Block Kit
Rear Lift Height: 6 Inches
Construction: OEM-Style Cast Iron Blocks
Material: Cast Iron and Steel
Finish: Corrosion-Resistant Finish
Mounting Type: Bolt-On Installation
Fitment: Select Chevrolet, GMC, and Ford applications
Design Features
- OEM-style cast iron construction
- Integrated locator pin design
- Vehicle-specific block geometry
- Application-specific U-bolts
- Heavy-duty hardware package
- Bolt-on installation design
Functionality
- Provides 6 inches of rear lift
- Restores factory rake
- Improves towing stance
- Reduces rear-end squat under load
- Supports lifted and leveled trucks
- Maintains factory ride characteristics
Available Options
The ReadyLIFT 6" Rear Lift Block Kit is available in:
Vehicle Fitments
- 2014–2018 Chevrolet Silverado 1500 2WD
- 2014–2018 Chevrolet Silverado 1500 4WD
- 2014–2018 GMC Sierra 1500 2WD
- 2014–2018 GMC Sierra 1500 4WD
- 2019–2024 Chevrolet Silverado 1500
- 2019–2024 GMC Sierra 1500
- 2017–2025 Ford F-250 Super Duty SRW 2WD/4WD
- 2017–2025 Ford F-350 Super Duty SRW 2WD/4WD
Finish Options
- OEM-style cast iron construction
- Corrosion-resistant finish
- E-coated U-bolts
- Heavy-duty steel hardware
- Integrated anti-rotation design
Configurations
- 6-inch rear lift configuration
- Towing and hauling setup
- Factory rake restoration package
- Leveling kit companion system
- Bolt-on installation system
Choose the ReadyLIFT 6" Rear Lift Block Kit if you want substantial rear lift, improved towing performance, and OEM-style durability for your GM or Ford truck.
Why Choose the ReadyLIFT 6" Rear Lift Block Kit?
Constructed from OEM-style cast iron rather than lightweight extruded materials for superior strength and long-term durability.
- Designed to restore rear rake after installing front leveling kits while improving towing and hauling performance.
- Includes longer application-specific U-bolts and hardware for a complete installation.
- Eliminates the need for stacked lift blocks, providing a safer and more engineered suspension solution.
- Available for multiple truck platforms and driveshaft configurations, ensuring proper fitment and driveline geometry.
- Backed by ReadyLIFT's limited lifetime warranty for long-term ownership confidence.
What’s Included
- Two rear lift blocks
- Four extended U-bolts
- Nuts and washers
- Installation hardware
- Installation instructions
Installation Notes
- Professional installation is recommended
- Vehicle-specific fitment should be verified before installation
- Part #26-3460 replaces the factory rear block and provides approximately 5 inches of additional rear lift on 2014–2018 GM 1500 trucks.
- Part #66-3960 is designed specifically for mono-leaf rear suspension applications.
- Part #26-2760 fits Ford Super Duty trucks equipped with a 1-piece driveshaft.
- Part #26-2761 fits Ford Super Duty trucks equipped with a 2-piece driveshaft.
- Ford applications are intended for Single Rear Wheel (SRW) trucks only.
- ReadyLIFT recommends appropriate rear shock extensions or longer shocks when using lift blocks of this height.
- Periodic inspection and re-torque of U-bolts is recommended after installation.
- No cutting, drilling, or welding required for installation on most applications.
Warranty Information
ReadyLIFT Warranty
ReadyLIFT suspension products are backed by a limited lifetime warranty covering defects in materials and workmanship for the original purchaser.